Differential expression of lncRNAs during the HIV replication cycle: an underestimated layer in the HIV-host interplay

Sci Rep. 2016 Oct 26;6:36111. doi: 10.1038/srep36111.

Abstract

Studying the effects of HIV infection on the host transcriptome has typically focused on protein-coding genes. However, recent advances in the field of RNA sequencing revealed that long non-coding RNAs (lncRNAs) add an extensive additional layer to the cell's molecular network. Here, we performed transcriptome profiling throughout a primary HIV infection in vitro to investigate lncRNA expression at the different HIV replication cycle processes (reverse transcription, integration and particle production). Subsequently, guilt-by-association, transcription factor and co-expression analysis were performed to infer biological roles for the lncRNAs identified in the HIV-host interplay. Many lncRNAs were suggested to play a role in mechanisms relying on proteasomal and ubiquitination pathways, apoptosis, DNA damage responses and cell cycle regulation. Through transcription factor binding analysis, we found that lncRNAs display a distinct transcriptional regulation profile as compared to protein coding mRNAs, suggesting that mRNAs and lncRNAs are independently modulated. In addition, we identified five differentially expressed lncRNA-mRNA pairs with mRNA involvement in HIV pathogenesis with possible cis regulatory lncRNAs that control nearby mRNA expression and function. Altogether, the present study demonstrates that lncRNAs add a new dimension to the HIV-host interplay and should be further investigated as they may represent targets for controlling HIV replication.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • CD4-Positive T-Lymphocytes / cytology
  • CD4-Positive T-Lymphocytes / metabolism
  • Gene Expression Profiling
  • Gene Regulatory Networks
  • HIV / physiology*
  • HIV Infections / genetics*
  • HIV Infections / pathology
  • HIV Infections / virology
  • Humans
  • Oligonucleotide Array Sequence Analysis
  • RNA, Long Noncoding / genetics
  • RNA, Long Noncoding / metabolism*
  • RNA, Messenger / metabolism
  • Virus Replication / genetics*

Substances

  • RNA, Long Noncoding
  • RNA, Messenger